Attaching device



March 8; 1932. R. s. PEIRCE ATTACHING DEVICE Filed Dec. 3, 1927 Patented Mar. 8, 1932 g UNITED STATES PATENT OFFICE I v earn: s.rmncs,..or

Application filed December 3, 1927. Serial No. 237,576.

My invention relates to attaching devices Where the bar or sleeve is thickened by fold-- of the class employing bolts and object holding it upon itself, the sides of the fold are. ing elements in the form of bars alongand preferably spaced sufiiciently apart to re- 7 against the sides of which the bolts are harnceive a body of softer metal therebetween, it me!- driven. the bar being apertured through the exterior 55 In accordance with one feature ofthe in-' side of the fold to permit this softer metal vention, the object holding bar is provided to be exuded therethrough when the sides of with a head at its outer end which projects the fold are brought closely together by the laterally from the bar to lap the supported hammered bol-t,the exuded metal being forced 1' object and there is a liner of soft metal upon toward the wall or support and cooperating 60 the body of the bar which is interposed be to hold the fastening element in place. I tween the bolt and the bar and with which The invention will be explained more fully the bolt was forcible lateral engagement by reference to the accompanying drawings I whereby the bar is firmly held in position, it in which Fig. 1 is a side view of one form of beingassumed that the entire device is rehammerdriven bolt whichmay be employed; 65 ceived within a recess in a wall or other sup- Fig. 2 is a perspective view'of the split sleeves port prior to the time that thebolt is haminto which the bolt shown in F ig; 1 may be Inered into place to force the device as a driven, the depression extending longitudiwhole into tight engagement with the wall or na lly of the sleeve being illustrated with a support. In the preferred embodiment of body of softer metal therein; Fig.3 is aper- 7 0 the invention, there are two such bars which spective view showing the halves of the struccollectivelylform a split sleeve. 1 ture shown'in Fig; 2 in separated relation, In accordance with another feature of the the fillings in the depressions in the sides of invention, the object holding bar or sleevehas the sleeve being omit-ted Fig. lis a view from an aperture therethrough and there is am the interior showing one half of the sleeve other liner on the other side of the bar or, in with the soft metal absent; Fig. 5 is a cross 7 case of a sleeve, on the outside of the sleeve, sectional view taken through both'halves of both liners having a portion in integral con-' the sleeveand showingthe softer metal in nection therewith and passing through said place, the bolt being absent; Fig. 6. is a view aperture. generally similar to'Ei v5 but showing the, 80 In accordance with another feature of the bolt driven. into placeg- Fig. 7 is-"a sectional. invention, a depression is formed on the ex- View online 77 of Fig. 5; and Fig. 8 is a terior' side of the sleeve or on the side of the sectional vie n 0f g- I bar opposite the side that is'adjacent the bolt, ,The attaching deviceillustrated is prefcn stantially fills the depression, the bolt forciwhich are so shaped and arranged as to colbly engaging the bar or sleeve on the side oplectively form asleeve whichis splitthrough-- posite said depression and in the zone of the out fromcnd to end into distinct-portions and v depression where the bolt forcibly engages whose bore-extends throughout the length of the bar or sleeve to thereby spread and press the sleeve. The halvesof the sleeve are rethe body of softer metal that is in the depres- .spectively formed with flange ortions 3 and sion against the surrounding wall or sup 4at one end of the sleeve, these ange portions port. g V y collectively forming acor'nplete flange that In accordance with another feature of the surrounds the sleeve. Each flange portion 4 invention, the bar or sleeve is thickened at 3, 4 constitutes'a head upon the bar which one end. preferably by folding the same upon carries it and the two flange portions to-' itself. this thickened end being encountered gather constitute ahead for the sleeve that by the hammer driven bolt to deflect or spread is formed the twobars. This head which H the bar or sleeve in the process of securing thus projects laterallyfrom the sleeve laps the attaching device to the wall or support. the 'object,'5, Fig. "6, which is to befheld by there being a body of softer metal which subably inclusive of two bars of. metal 1. and 2 is to be secured.

A liner 8 of softer metal is provided upon each bar and within the bore of the sleeve. An assemlding bolt 9 preferably in the form of a galvanized nail. having a roughened surface throughout its length is" forcibly hammered into the bore of the sleeve and against the liner 8, the bolt having strong lateral holding engagement with said liner. to prevent the withdrawal of the bolt, this holding engagement being increased by roughening the surface of the bolt, this ronghening being preferably secured by suitably galvanizing the bolt. The bolt preferably has a head 9' which may be struck by the hammer and is of wedge formation at its other end, as indi- "ated at 9", to facilitate its entry.

A second liner 10 of softer metal than that of which the sleeve is made is provided upon each bar and upon the exterior of the sleeve. Each bar is formed with an aperture 11 therethrough. In the process of assembling the liners. 8 and 10 with each bar, the metal, such as lead. of which these liners are formed, is so poured that a connection 12 uniting the liners will extend through the contiguous aperture 11, the liners and their connection 12 being in integral formation.

Each bar section 1, 2 of the object holding sleeve has a well like depression 13 formed on the exterior side of the sleeve and extending along the same and terminating short of the sides of the bars respectively having the same. When the bolt 9 is hammer driven into position, it will engage the bottom of the de pressions 13 and, to a certain extent, flatten out the depressions, consequently expanding the sleeve in the region of the depressions and spreading the expanding soft metal within the depressions whereby the sleeve is tightly held in assembly with the surrounding wall or support. The depression 13 is desirably formed, as here shown, by merely offsetting a portion of the bar laterally, the depression terminating short of. the longitudinal side edges of the bar. Thus a depression is formed in the bar without causing areduction in the cross sectional area of the shank portion of the bar, the shank portion of the bar being of substantially uniform cross sectional area throughout, and the bore of the sleeve is reduced by the depression without weakening the wall of the bar, as would occur if the depression did not stop short of the side edges of the bar.

The inner end of each bar 1, 2, that is, the inner end of the sleeve comprised of these bars, is thickened at the inner end preferably folding the bars upon themselves, the ends of the bars being desirably directed into the bore of the sleeve, though the invention is not to be thus limited. The thickening of the inner end of the bar continued lengthwise of the bar to an extent that in excess of the thickness of the bar whereby an ellective obstruction is afforded to counteract the inward exudence of the softer metal. The outer side of the fold in each bar is desirably provided with an aperture to extending therethrough and the sides of each fold are desirably soaced su'lliciently apart to receive the lower end of the corres 'ionding liner therebetweeu. lVhen the bolt is driven into place the penetrating end 9 thereof facilitates the entry of the bolt between the dc pressions l3 and into and through the Zone of the folds at 14. The sides of the folds are consequently brought closely together and preferably substantially in contact with each other, the softer metal that was between the sides of the folds being consequently exuded through, the apertures 15 as indicated at 16 in Fig. 6. Some of this metal is also exuded through the cracks between the two bars 1 and 2. as indicated in Fig. The liners 8 in the two bars l. and 2 are desirably merged into one integral element, the bolt 9 not only forcing the exudence of some of. the metal 8 through the cracks between the bars 1 and 2 in the zone at the folds at i l but also forcing the exudence of some of the metal 8 through these cracks downwardly toward such zone.

It will. be seen, particularly with reference to Fig. (5, that the sleeve is very forcibly secured to the surrounding wall or support, the inner and thickened end of the sleeve being especially most effectively assembled due to the formation of the folds at 1st and the em ployment of the softer metal. between the sides of ti e folds. The thickened inner end of the sleeve also constitutes a stopper or plug for the recess 6 in the wall, such stopper or plug serving to prevent the exudence of the lead or softer u'iaterial 8 and 10 inwardly beyond this plug whereby the tensing strength or holding power of the fastening device, as a whole. is greatly increased. it will be observed that the inner liner 8 has permanent assembly with the object holding bars 1 and 2 so that both these bars a re. there by. held in assembly before they are put into service. In other words, the thickened inner end not only obstructs the inward exudence of the softer material. 8, but, in cooperation with the bolt 9 and the wall of the recess (5, obstructs also the inward exudence of the softer material 10, since the bolt, upon engaging the folds l l positively separates the inner ends of the bars 1 and Q, forcing the inner ends of the bars laterally to substantially fill the space between the. belt and the recess.

Changes may be made without departing from the invention.

Having thus described my invention, I claim:

1. An attaching device including an object holding bar of metal having an object engaging flange at one end that is to be outermost; a body of softer metal upon one side of said bar; and a driven bolt extending along the opposite side of the bar and forcibly pressing thereagainst wherein the side of the bar that is engaged by the bolt is also provided with a liner of softer metal that is directly engaged by the bolt and through which pressure from the bolt is transmitted to the bar, the softer bodies of metal upon both sides of the bar being integral and having a connecting portion passing through an opening that is formed through the bar.

2. An attaching device including an object holding bar of metal having an object engaging flange at one end that is to be outermost; a body of softer metal upon one side of said bar; and a driven bolt extending along the opposite side of the bar and forcibly pressing thereagainst wherein the bar is folded at its inner end to thicken it and wherein the side of the bar that is engaged by the bolt is also provided with a liner of softer metal that is directly engaged by the bolt and through which pressure from the bolt is transmitted to the bar, the softer bodies of metal upon both sides of the bar beingintegral and having a connecting portion passing through an opening that is formed through the bar.

3. An attaching device including an object holding bar of metal having an object engaging flange at one end that is to be outermost; a body of softer metal upon one side of said bar; and a driven bolt extending along the opposite side of the bar and forcibly pressing thereagainst wherein the bar is folded at its inner end to thicken it, wherein the bar car ries a portion initially engaged by and sloping inwardly toward the bolt, and wherein the side of the bar that is engaged by the bolt is also provided with a liner of softer metal that is directly engaged by the bolt and through which pressure from the bolt is trans-- mitted to the bar, the softer bodies of metal upon both sides of the bar being integral and having a connecting portion passing through an opening that is formed through the bar.

, 4. An attaching device including two separately formed objects holding bars of metal placed abreast and each having an object engaging flange at one end that is to be outermost; and a liner of softer metal upon the opposed sides of said bars and holding the bars in assembly, and engageable by a bolt driven between the bars, each bar-being thickened at its other end to prevent the inward exudence of the liner.

5. The structure of claim *1 wherein the bars are folded at their inner ends to thicken them.

6. The structure of claim 4 wherein the liner has the portion thereof that is initially engaged by the bolt sloping inwardly toward the bolt. t

7. An attaching device including an object holding'bar of metal having an object engaging flange at one end that is to be outermost, said bar being folded at its other end;

and a liner of softer metal for the bar having a portion between the body of the bar and its folded end portion, there being an aperture in the outer side of the fold communicating with the'space occupied by said liner portion through which this portion may exude.

8. An attaching device including two separately formed object holding bars of metal placed abreast and each having an object engaging flange at one end that is to be outermost; and a liner of softer metal upon the opposed sides of said bars and holding the bars in assembly, and engageable by a bolt driven between the bars.

9. An attaching device including an object holding bar of metal having an object engaging flange at one end that is to be outermost, said bar being folded at its other end and having an aperture in the outer side of the fold; a liner of relatively soft metal having a portion between the sides of said fold and another portion extending laterally through said aperture; and a driven bolt ex-.

tending along the bar into engagement with the folded end of the bar and forcibly press-,

ing the sides of the fold together, whereby said soft metal is forcibly pressed into engagement with said object to which the bar is applied.

10. The combination with a recess; of an attaching device embodying two object holding bars of metal placed abreast and each having an object engaging flange at one end that is to be outermost, each bar having a depression in one side, a body of softer metal in each depression, each bar being thickened V at its other end that is to be innermost to an extent lengthwise of the bar in excess of the thickness of the bar, said depressions terminating short of the thickened portions of the bars, and adriven bolt extending along said bars and forcibly pressing against the sides thereof opposite the sides having the depressions and engaging the thickened portions to separate the bars, said thickened portions extending between the bolt and the walls of the recess, whereby said thickened portions cooperate with the bolt and the wall of the recess to obstruct the inward exudence of the softer metal.

11. An attaching device embodying an ob ject holding element in the form of an elongated integral bar of metal having a shank portion and a flange portion, said flange portion being atone end of the bar that is to be outermost and said shank portion being of substantially uniform cross sectional area throughout, a portion of said bar intermenliate the ends of the bar being ofi set to provide a depression terminating short of the side edges of the bar in one side of the bar and the bar being provided with a body of softer metal substantially filling said depression. 7

In witness whereof, I hereunto subscribe my name.

RALPH S. PEIRCE. 

